Civics Learning Act of 2019 This bill amends the Elementary and Secondary Education Act of 1965 to prioritize innovative civics learning and teaching and to provide additional funding in FY2020 for civics education programs. The bill expands the allowable uses of grant funds for civics education to include before, during, and after-school and extracurricular activities, activities that include service learning and community service projects that are linked to school curriculum, activities that encourage and support student participation in school governance, and online and video game-based learning. The Department of Education must ensure that specified percentages of grant funds for civics education be awarded on a diverse basis to eligible entities that serve students and teachers at elementary schools, middle schools, and high schools.